No Dial Tone from Polycom 450 handset

I’m setting up several Polycom 450’s and one phone is giving me an issue. Not sure if it’s a FreePBX setting, a provisioning setting, or it’s a hardware problem.

If I select the extension button to open the line to speaker, I get a dial tone and am able to dial up as normal.


If I pick up the handset, there is no dial tone yet I am able to dial out with no issues.



Did a device reboot and reconfigured. Whatever was causing the headset to not hear the dialtone was wiped and things are fine now.

switched it out with another. Plus, I can dial out and talk on it fine.

Bad handset or bad cord probably.